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doc: Remove osd disk thread items that no longer exist

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Caused by: 35a4b5072f

Signed-off-by: David Zafman <dzafman@redhat.com>
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David Zafman 2019-02-07 17:20:11 -08:00
parent 4a6d44d459
commit dee162039c
1 changed files with 0 additions and 43 deletions
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doc/rados/configuration/osd-config-ref.rst
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@ -460,49 +460,6 @@ Operations
:Default: ``30``
``osd disk threads``
:Description: The number of disk threads, which are used to perform background
disk intensive OSD operations such as scrubbing and snap
trimming.
:Type: 32-bit Integer
:Default: ``1``
``osd disk thread ioprio class``
:Description: Warning: it will only be used if both ``osd disk thread
ioprio class`` and ``osd disk thread ioprio priority`` are
set to a non default value. Sets the ioprio_set(2) I/O
scheduling ``class`` for the disk thread. Acceptable
values are ``idle``, ``be`` or ``rt``. The ``idle``
class means the disk thread will have lower priority
than any other thread in the OSD. This is useful to slow
down scrubbing on an OSD that is busy handling client
operations. ``be`` is the default and is the same
priority as all other threads in the OSD. ``rt`` means
the disk thread will have precedence over all other
threads in the OSD. Note: Only works with the Linux Kernel
CFQ scheduler. Since Jewel scrubbing is no longer carried
out by the disk iothread, see osd priority options instead.
:Type: String
:Default: the empty string
``osd disk thread ioprio priority``
:Description: Warning: it will only be used if both ``osd disk thread
ioprio class`` and ``osd disk thread ioprio priority`` are
set to a non default value. It sets the ioprio_set(2)
I/O scheduling ``priority`` of the disk thread ranging
from 0 (highest) to 7 (lowest). If all OSDs on a given
host were in class ``idle`` and compete for I/O
(i.e. due to controller congestion), it can be used to
lower the disk thread priority of one OSD to 7 so that
another OSD with priority 0 can have priority.
Note: Only works with the Linux Kernel CFQ scheduler.
:Type: Integer in the range of 0 to 7 or -1 if not to be used.
:Default: ``-1``
``osd op history size``
:Description: The maximum number of completed operations to track.